Sheet Metal Duct Installation: Start Collar and Elbow Attachment

How to Install Round Sheet Metal Duct – Part 2

The sheet metal start collar is installed in the supply air plenum and adjustable elbow attached. This project is continued from How to Install Round Sheet Metal Duct – Part 1. Sheet Metal Duct Installation: Start Collar and Adjustable Elbow The 12 inch diameter sheet metal start collar and 0 to 90 degree adjustable elbow […]

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Install Round Sheet Metal Air Duct

How to Install Round Sheet Metal Duct – Part 3

The round sheet metal duct pipe, adjustable elbows and metal duct strap are installed in this update. This project is continued from How to Install Round Sheet Metal Duct – Part 2. Duct Strap and Tin Snips I purchased a 1 inch wide by 100 foot roll of 26 gauge steel duct strap to support […]

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Sheet Metal Air Duct Install: Adjustable Elbow Alignment

How to Install Round Sheet Metal Duct – Part 4

Adjustable elbow alignment and fitting the last section of sheet metal duct pipe. This project is continued from How to Install Round Sheet Metal Duct – Part 3. Sheet Metal Air Duct – Elbow Alignment Instead of a single 90 degree elbow, I’m installing two adjustable set at ~45 degrees for better air flow efficiency […]

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Assemble Snap Lock Duct Pipe: Press Together the Seam

How to Cut and Assemble Snap Lock Duct Pipe

This tutorial shows how to cut and assemble sheet metal snap lock duct pipe for a residential heating and air system. Also see this related sheet metal duct installation project. How to Cut and Assemble Snap Lock Duct Pipe Snap Lock seam round sheet metal duct pipe is available in prefabricated sections. A 5 foot […]

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Manually Crimped Sheet Metal Duct Pipe

How to Crimp Round Duct Pipe

This tutorial shows how to crimp round duct pipe with a 5-blade crimp tool for joining sections of sheet metal duct. Sheet Metal Duct Pipe Crimp Factory made sheet metal duct pipe and fittings have a 1-1/2 inch wide male crimp band to easily fit one section of pipe into the next. The crimp band […]

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Seal the Sheet Metal Duct Start Collar & Plenum with Mastic

How to Seal Sheet Metal Duct with Mastic

How to seal sheet metal duct with mastic to prevent air leaks. This project is continued from How to Install Round Sheet Metal Duct – Part 4. How to Seal Sheet Metal Duct with Mastic Sheet metal duct seams and joints must be sealed with mastic to prevent air leaks. The materials for sealing sheet […]

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J.P. Lamborn Duct Insulation: Thermal Sleeve MT-05

How to Insulate Round Sheet Metal Air Duct

How to insulate round sheet metal air duct with R-8 thermal insulation sleeve. This project is continued from How to Seal Sheet Metal Duct with Mastic – Part 1. Duct Wrap vs Duct Sleeve Insulation I considered two methods for insulating sheet metal air duct insulation that are practical for the DIY homeowner: Duct Wrap […]

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Round Sheet Metal Ductwork Installation

How to Insulate Round Sheet Metal Air Duct – Part 2

How to insulate round sheet metal air duct with R-8 thermal insulation sleeve – sealing the insulation butt joints. This project is continued from How to Insulate Round Sheet Metal Air Duct – Part 1. Sheet Metal Duct Insulation Sleeve: Start Collar I began at the supply air plenum start collar and worked my way […]

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